/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundFrontendDocument.h
TODO: This is unfortunately required to be manually managed and executed anytime the input/output/environment arrays are mutated due to the design of the controller system obscuring away read/write permissions when querying. Need to add accessors and refactor so that this isn't as error prone and remove manual execution at the call sites when mutating aforementioned UPROPERTIES.
void UpdateChangeID()